It was formed in 1997, as a result of a discussion in a Nürburgring bar between Willie Moore and James Tucker.

Folklore has it that James Tucker and John Veness formed the organizing European Endurance & Racing Club (EERC) with a £10 note found on the ground.

At the end of the 2015 season, James sold the Britcar rights to Hedley Cowell Events Ltd. For the 2016 season, Claire Hedley re-launched Britcar Endurance as the Dunlop Endurance Championship and Dunlop Trophy Championship.

For 2020 the series was invited to support the FIA World Endurance Championship races at Spa-Francorchamps and Silverstone.

GTs, which include cars like Ferraris, Porsche Cup, Marcos, Moslers and Ginettas over a long-distance race, normally between two and four hours in length with a compulsory pit stop.

Production, which include cars like Renault Clio Cup, Seat León Supercopa, VW Golf, Porsche Boxster, BMW M3s, Lotus Elise and Mini Cooper S. These races are normally 90 minutes long, featuring a mandatory pit stop.

In 2020 Britcar ran as a support event for the FIA World Endurance Championship for the first time, at the 2020 6 Hours of Spa-Francorchamps event, with two non-championship races consisting of Endurance and Trophy cars plus non-Britcar cars with one-off entries made under class 1 through class 7 specifications.

(This marked the introduction of the relationship with WEC specifically; Britcar has raced outside the UK, including at Spa-Francorchamps, in many earlier years.)

Praga split off from Endurance to have grids of their own, run under the Britcar/BARC umbrella while the Trophy Championship continued unchanged.